Refill for Air Wick Essential Mist essential oils diffuser Relaxing Lavender Fragrance, experience a fully sensory journey through lavender fields with a gentle breeze of fruits and woods The mist is released at regulated intervals for 8 hours, and turns off until the same time the next day, releasing a subtle fragrance Customizable fragrance intensity, each refill lasts up to 45 days, enjoy a long-lasting aroma in your home